Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

In my previous post, I looked at some of the problems associated with long parameters lists for methods and constructors. In that post, I discussed replacing primitives and built-in types with ...

This illustrates a weakness of dealing with too many parameters with simple method overloading (overloading methods with same name based only on number and types of parameters).